Home / 63,170.28-87,178.68-36,320.40

Finding the Fourth Proportional to 63,170.28, 87,178.68 and 36,320.40

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Solution

The fourth proportional to 63,170.28, 87,178.68 and 36,320.40 is: 50,124.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,170.28 : 87,178.68 = 36,320.40 : x
  2. Step 2: Convert to fraction form
    63,170.28/87,178.68 = 36,320.40/x
  3. Step 3: Cross multiply
    63,170.28x = 87,178.68 × 36,320.40
  4. Step 4: Simplify right side
    63,170.28x = 3,166,364,529.07
  5. Step 5: Solve for x
    x = 3,166,364,529.07/63,170.28
  6. Step 6: Final answer
    x = 50,124.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.